#!/bin/bash

# This is script to automate template build process in reaction to properly signed
# command.

# shellcheck source=scripts/auto-build-functions.sh
. "$(dirname "$0")/auto-build-functions.sh"

usage() {
    echo "Usage: $0 dist timestamp" >&2
    echo "dist as configured in builder.conf" >&2
    echo "timestamp expected in format %Y%m%d%H%M" >&2
    echo "Repository the template is uploaded to is taken from builder.conf DEFAULT_TEMPLATE_REPOSITORY" >&2
}

if [ -z "$1" ]; then
    usage
    exit 1
fi

set -e

cd "$(dirname "$0")/.."

# Sanity checks
if [ "${1##*/}" != "${1}" ]; then
    echo "Found '/' in argument" >&2
    exit 1
fi

# resolve template aliases, if any
template_dist=$(DISTS_VM="$1" make get-var GET_VAR=DISTS_VM)

# then check if this template is enabled in builder.conf
found=
for d in $(make -s get-var GET_VAR=DISTS_VM); do
    if [ "$d" = "$template_dist" ]; then
        found=1
    fi
done
if [ -z "$found" ]; then
    echo "Template not enabled here: $template_dist" >&2
    exit 1
fi

if ! printf "%s" "$2" | grep -q "^[0-9]\{12\}$"; then
    echo "Invalid timestamp format" >&2
    exit 1
fi
timestamp="$2"

# check if template is already built
template_name=$(DISTS_VM="$template_dist" make -s template-name)
timestamp_file="qubes-src/linux-template-builder/build_timestamp_$template_name"
if [ -r "$timestamp_file" ]; then
    timestamp_existing=$(cat "$timestamp_file")
    if [ "$timestamp" -lt "$timestamp_existing" ]; then
        echo "Newer template ($timestamp_existing) already built" >&2
        exit 0
    elif [ "$timestamp_existing" -eq "$timestamp" ]; then
        template_status=$(scripts/check-release-status-for-component \
                --abort-on-empty \
                --no-print-version \
                linux-template-builder vm "$template_dist" || :)
        if [ "$template_status" != "not released" ]; then
            echo "Template already built" >&2
            exit 0
        fi
    fi
fi

repo=$(make -s get-var GET_VAR=DEFAULT_TEMPLATE_REPOSITORY)
if [ -z "$repo" ]; then
    echo "DEFAULT_TEMPLATE_REPOSITORY in builder.conf not set" >&2
    exit 1
fi

TEMPLATE_TIMESTAMP="$timestamp"
export TEMPLATE_TIMESTAMP

if ! DISTS_VM="$template_dist" scripts/make-with-log template-in-dispvm; then
    build_failure template vm "$template_dist" "$(get_build_log_url)"
    exit 1
fi

build_logs="linux-template-builder-vm-${template_dist}=$(get_build_log_url)"

if ! DISTS_VM="$template_dist" scripts/make-with-log \
               COMPONENTS=linux-template-builder \
               BUILD_LOGS_URL="$build_logs" \
               sign-all "update-repo-$repo"; then
    build_failure template upload "$template_dist" "$(get_build_log_url)"
    exit 1
fi
